How do you feel about this story?

This is 'Child of Rage', perhaps one of the most shocking and disturbing documentary films ever aired on TV. This was shot in Vancouver, back in 1989, and this involves actual footage from the psychologically scarred, psychopathic young girl's early therapy sessions. This is Beth Thomas today:The therapy was ultimately successful, and she's now a registered nurse, working on the neonatal unit at a hospital in Flagstaff, Arizona, as well as working with children who suffered from child abuse in the same manner that she did. So, what's your opinion of this story; of the girl herself, her younger brother, her adoptive parents, and of the biological father who was ultimately to blame for it all?